ptable.comThe symbol for Calcium is Ca, it's atomic number is 20, and it's atomic mass 40.078.
It has 20 Protons, 20 Neutrons and 20 Electrons.
Melting Point- 1115K, 842°C, 1548°
Boiling Point- 1757K, 1484°, 2703°
State- Solid
Densiity- 1.55g·cm−3
It is an Alkine Earth Metal
Color- Dull Grey, Silver
Flammable- Yes
Reaction with air- It burns in air to give a mixture of white calcium oxide.
Reaction with water- It reacts slowly and forms calcium hydrooxide.
Reaction with Halogens- Calcium is very reactive with the halogens fluorine, chlorine, bromine and iodine.
Discovery
Calcium was discovered by Humphry Davy in 1808 Britain by electrolyzing a mixture of lime and mercurie oxide.
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Sites Used
www.ptable.com
wikipedia.org/wik/calcium
webelements.com/calcium.chemistry/html
It has 20 Protons, 20 Neutrons and 20 Electrons.
Melting Point- 1115K, 842°C, 1548°
Boiling Point- 1757K, 1484°, 2703°
State- Solid
Densiity- 1.55g·cm−3
It is an Alkine Earth Metal
Color- Dull Grey, Silver
Flammable- Yes
Reaction with air- It burns in air to give a mixture of white calcium oxide.
Reaction with water- It reacts slowly and forms calcium hydrooxide.
Reaction with Halogens- Calcium is very reactive with the halogens fluorine, chlorine, bromine and iodine.
Discovery
Calcium was discovered by Humphry Davy in 1808 Britain by electrolyzing a mixture of lime and mercurie oxide.
Sites Used
www.ptable.com
wikipedia.org/wik/calcium
webelements.com/calcium.chemistry/html